# -*- coding: utf-8 -*-
"""
@Project: base_python
@File: highs_lows.py
@Author: PC
@Date: 2025/03/18
@Description: 
"""
import csv
from datetime import datetime
from matplotlib import pyplot as plt
# 从文件中获取日期和最高气温
filename = 'sitka_weather_2014.csv'
with open(filename) as f:
    reader = csv.reader(f)
    header_row = next(reader)
    dates,highs,lows = [],[] ,[]    
    for row in reader:
        current_date = datetime.strptime(row[0],"%Y-%m-%d") 
        dates.append(current_date)
        high = int(row[1])
        highs.append(high)
        low  = int(row[3])
        lows.append(low)
# 根据数据绘制图形
fig = plt.figure(dpi=128,figsize=(10,6))
plt.plot(dates,highs,c='red',alpha=0.5) 
plt.plot(dates,lows,c='blue',alpha=0.5)
plt.fill_between(dates,highs,lows,facecolor='blue',alpha=0.1)
# 设置图形的格式
plt.title("Daily high low temperatures 2014",fontsize=24)
plt.xlabel('',fontsize=16)
fig.autofmt_xdate() 
plt.ylabel("Temperature (F)",fontsize=16)
plt.tick_params(axis='both',which='major',labelsize=16)
plt.show()